Sheet-metal-working machine



26, 3 s. FLA-mu I SHEET METAL ikdnxme MACHINE 2 Sheets-Sheet Filgd Nov. 26 1928 2 Sheets-Shem 2 L. 5. PLATOU SHEET METAL WORKING MACHINE Filed NOV. 26. 1928 I V l' L IIIIIIIIIIIIII:

Aug. 26, 1930.

. f a? a.

Patented Aug." 2 6, 1930 UNITE-D AND VJILCOXL COMPANY, OF SOUTHINGTON,

snnncr iuaren-wonxnver Mnonnvn Application filed November 26, 1 92 8 Serial N'. 321 81.0.-

The present invention relatesto a machine for performing on sheet metal or sheet-metal articles various operations, among which may be mentioned those of crimping, bending,

turning, wiring, elbow edging, collar edging, burnngshtting, andtrlmming.

An aim of the present invention 1s .to provide an improved machine of this sort means of which the various operations of which it is capable may-be very accurately carried outwith expedition and economy,

V fori longitudinally adjusting. the upper arbor,

which means .that the machine'has' a high rate of production and the var-lousoperat ons are carried out at a lower cost.

Another aim of the inventlon is to'provide a small, compact and efficient machine for carr' rying out the various operations, and whlch is very slmple in COIlStlllClilQI'l and arrangement. A further aim of the invention isto provide a machine of this sort which may bequickly and easily adjusted and operated.

Other objects will bein part obvious and in part pointed out more .in detailhereinafter.

features of construction,combination of eleg set forth and the scope ,of theapplication of.

which will be indicated in the appended claims. c I,

In the accompanying drawings, wherem is shown onevof the many embodiments which ,These side-walls, at their upper ends,'pro-' the present invention may take I c Figure 1isa s1de elevat onal vlew of my improved machlne;

FigQQ-isa front elevational View thereof;

31s a viewtaken longitudinally and centrally through the machine;

Fig. 4 is a transverse view taken substan-,

tially on-line 4 4; of Fig. 3; and p I .Fig.-.5 is.a detail I'ew showin'g 'the means this view being 5-5 of'Fig. s.

' Referring to thedrawingsin taken substa ntia llyline detail, A :de-

' notesgenerallythe. base of. the machine; B,

the frame in which the :arbors hereinafter described are located;

7 1e invention accordingly consists in the C, a gearbox secured.

to thegrear end of the frame B; and D, a

platform pivoted on the base and carrying an electric motor designated by theletter E. Obviously, the construction and arrangement be driven from any suitable source of power. The motor E is shown for purposes.

of exemplilication only. 'It may be stated thatpreferably the machine ismotor driven asvillustrated, so, as to provide 'a compact,

complete machine vor unitof; relatively small size, and which is capable of being easily I I transported.

In the present illustrative disclosure, there CONNECTICUT, A CORPORATION OF S; PA NT OFFICE.

is mounted in the gear box a transverse shaft- 10 having aworm llrneshing. with the worm wheel 12 secured .to the rear end of the lower arbor 13! 'One end. of the shaft 10. is. pro-. 7

vidediwith astepped pulley 14 which is driven by the motor E through a :belt 15. The plat-- form D,icarrying the motor E, is pivoted on thebase A, as at 16, and a spring 17 is providedfor normally urging the platform D ina direct-ion to keep thebelt taut. The machine, as previously stated, is of relatively small size and may be mounted on a bench or the like, the benchbeing shown by dotted lines in the drawings, by. the numeral 18.

, The frame ,'s of hollowconstruction and has ajpair' of parallel. sile walls connected at theirupper ends by a transverse wall 26.

ject forwardly or overhang so as to prov de ing box27 hereinafter described-more in defExtending forwardly ofthe frame, and

and being designated ahead inavlrich are guides .[01' ribs 28 fori guiding the head orforward end ofthe rock located beneath the head thereof, is a bearin-gportjion-QS) having an opening in which; is

located a bearingsleeve 30 'in which is irotatably mounted the lower arbor. or spindle 13;

. The rear end ofthis spindleextends intoan'd isjournalled in the gear boX'C andcarries the worm wheel12.

Theupper arbor Or spindle, designated by vthe numeral 32, is journalled in the'rocldng' box 27 and is driven from the lower arbor 13 7 through the gears 33 and 34-. The arbors 13 and 32 may be provided at their forward projecting ends with any suitable means or arrangement for receiving and securing the cooperating tools thereof. In the present illustrative disclosure, each of these arbors is shown as having a threaded portion 36 adapted to receive a nut so as to hold the tool in place. Also, each of the arbors may be provided with a pin 37 or other suitable means for preventing rotation of the tool with respect to the arbor on which it is mounted; In Fig. 3, there is shown, in dotted lines on the arbors 13 and 32, bead rolls upper arbor to be swung vertically towards and away from the tool on thewlower arbor. Furthermore, the bearing member or rocking box, together with the upper arbor carried thereby, is mounted for vertical adjustment so that the angular relation between the two arbors may be changed, depending upon the particular operation to be performed.

Furthermore, the bearing member, together with the upper arbor carried thereby,

is mounted for adjustment generally in the direction of the lengths of the arbors so as to permit proper matchingof the tools when they are operating upon'the work. For most operations, the rocking box will be so adjusted that, during the normal operation of the machine, the tumarbors will be generally parallel, but in some instances, as, forexample, when a fading or vanishing crimp is desired on the end of a stove pipe or the like, the arbors are adjusted so that the crimping rolls will be inclined towards one another. In the 7 present illustrative disclosure, the rocking 'bOX or member is adapted to swing on a pivoted member or pin, and the location of this pivot member or pin is adjusted through two instrumentalitics, one of the in strumentahties being for the purpose of adjusting the rocking box vertically, and the other one forwardly and rearwardly. I

Referring more particularly to the drawings, the bearing member or rocking box is located between the side walls of the frame and has a e'nerall horizontallv extendin b u b portion, a head 41 on the forward end thereof, and a depending arm 42at the rear there- 'ot. The head 41 and the arm 42 have aligned openings in which 1s journalled the upper arbor 32. It is understood that this arbor rotates in the bearing box, but has no longitudinal movement relative thereto. The head 41 of the rocking box slidably fits between the ribs 28 on the overhanging forward ends of the side walls 25. The lower end of the arm 42 is recessed so as to provide a pair of cars 44, and, extending transversely through these cars and this recess, is a pivot member in the form of a pin 45.

For the purpose of adjusting the rocking box, to ether with the upper arbor carried thereby, back and forth, that is, generally longitudinally of the arbors, the following arrangement is provided: The nrznueral designates an eye-bolt or adjusting screw, the head ofwhich is located between the cars 44.

The in 45 extends throu h the head of this D screw.

Pivoted' for turning movement on studs 49 IS a block 51 having a threaded opening which receives asleeve screw 52. This screw 52 has an external thread running in one direction and adapted to be screwed into the opening of the block 51, and it has an internal thread running in'the opposite direction and adapted to receive the thread of the adjustingscrew 50. F or the purpose of securing the sleeve screw 52 in adjusted posi tion, a lock nut 53 may be provided.

For the purpose of adjusting the pin 45 vertically and thus determine the angularity between the arbors when the tools are in operating position, the following arrange ment is provided: Pivoted on a pin is a lever (31, one arm of which is connected by a pair of links 62 to the pin 45. The links are pivotally connected to the lever 61 by means of a pin (33. Connected to the other arm of the lever 61 by a pin 64 is an adjusting screw 65 which is screwed into a sleeve screw 66 similar in construction and arrangement to the sleeve screw 52. The sleeve screw 66 is threadedin an opening in the rear wall 67 of the frame B. (38 is the lock nut. The frame B has, in at least one of its side walls, an opening 69 with which the pin 64 is adapted to be brought into registry or alignment as hereinafter described'more in detail.

In accordance with the present invention, I have provided means whereby the forward end of the rocking box may be quickly and easily depressed will so as to bring the upper tool into operative relation with the lower tool, and also means are provided for positively moving the upper tool into operative relation to the lower one and holding 'it in such position.

Referringto the drawings, 75 designates a lever extending across and adapted to en gage the upper end of the head 41 of the rocking box. This lever is pivoted to the frame l5,,as at 76, and extends transversely through suitable openings in the frame B.

onnected to the outer end of the lever is a link 77, the lower end of which is connected 7 tothe foot-treadle lever, 7 8:pivoted at one'en'd',"

as at 79, and carrying on its other end a suitable fo'ot-treadle 80. "The rocking box'27 is normally urged by aspring8l in a direction. to raise the forward end of the rocking box and thus-move the upper tool away from the lower one, This spring 8-l may be located in aibo're- 82 in the upper Wall 26 ofthe frame 1?). The spring engages; a lip or-abutment' 83 extending-upwardly from the'rear end of the rocking box. The-lever 78* and thelever 75 are'normally urged upwardly by aspring 84, one endoii which may be connectedtozt-h'e lever 78 and the other end to theb ench or support 18- on which the machine is located. -There may be interposedin this spring asuitable turnbuckle or other suitableadjusting device (.not shown); for varying the tension of the spring. The numeral 85 rdesignates a screw threadedinto anopening 86 in the head of the frame. The lower end of this screw isadapt-ed torengagethe lever 75. The upper end of the screw carriesa handle 87; 88-are suitablelockrnuts;

The manner in which the machine is set' up or adjusted and its- -mode of operation will now be briefly described. For most operations of which the machine is. capable,;itwill be found desirable tohave theupper arbor 32 substantially parallel to'the lower arbor 13 during normal running condition; that 'is, when the toolsprovided-onthese arbors tion could be made without departing from are cooperating; to manipulate the work.

In this I event, a the; shafts are? brought substantially into parallelism byturning/the sleeve screw 66 until the pin ti lis in align ment' orregistry with the. opening' 69 in the side of the framejihfter'this isdoiie, the;

forwardend of thetroeking boxisdqoressed either by means of'the treadl eor bymeans of a screw 85, so that the upper arboris parallel to the'lower arbor as shown in thedrawng,

' andthen the sleeve-screw 52 is turned toada just the rocking box backwardly, OI'ffQFWitlitL, v ly as the case maybeso as'toxbrinj'gtl eupper tool into proper longitudinalrelation to the lower tool. The machine having now been set up, the piece of work is placed between the lower-tool and the raised upper' tool and then the upper arbor is, depressed eitherthrough the instrumentality of] the treadle 80 or:

through thescrew 85 5 theioperation to be performed is relativelysimple; and can be quickly carried out, the foot treadle willibe 7 preferably. used to operateutiie' upper arbon,

The screw 85 may be us'edasa stop to adjust; I ably limit: upward movement of the rocking box. If the operation requiressavrelatively longer length of time, the upper-arbor may. be d'epressed'by turningthe screw 8 in the proper direction.

against the lever 75 andforcethatalever, ,t'ogether with the head of the rocking box withi which it is in engagement, downwardlyaf the sleeve screw 52 so as to When the; screw-1 is thus' "turned; the lower end thereof will bear -When"thepressure on the foot-treadle is relieved, or'when the screw 85 is turned upwardly, as'the case'may be, the spring 81 causes the forward end of the rockingbox to swing, upwardly and, the foot-trea olle and '7 lever 75 are raised by the spring 84.

Insome instances, as previously stated',it

is desirable to'have the tools, when in operating-relation, disposed at an angle to one an-;,

other; for example, where a fading or vans lshmg crimp 1s deslrable on the end of a stove pipe, the upper crimping rol-l shou'ld be dis,

the lower cooperating v GIGCi-i' The pin 4l5is, of course, moved ina slight arc struck about the center about which the block 51 swings. .The upper arbor, is :then longitudinally adjusted by turning bringthe tools in propr'registry. a i

As many changes above construction and many apparently widely different embodiments of this inv wni the scope thereof, it is intendedthata-ll matlimiting sense. 7

It is also to be understood that the la nguage used in the following'claims is int'endcould be made in the 5, I

ter contained in the above description or shown in the accompanying drawingflshall be interpreted as illustratlve' and not in a Jil n 1 afrarne, a fixedarbor therein,a rocking box, i

an arbor in said rocking boar, and a member,

on which-said box is pivoted andmounted for adjustment towards and away. from said fixedarbor' and for adjustmentlongitudinally thereof.

2. Ina machine of, the character described,

a frame havinggspaced parallel side walls, 1.

Xed arbor journalled-in-and projecting for-1 wardly from said frame, a rocking box above,

walls of said frame, an arbor iournalledin said-fixed arbor, atransverse pin onwhich said rocking box: s mounted for rocking;

movement-ina direction towardsv and away from saidifix-ed arbor, and means; for sup-I said fi Xed arbor and located betweenthe'side I I said rocking box and generally parallel to 1:2

tically and longitudinally of said fixed arbor. 3. In a machine of the character described, a frame, an arbor therein, a bearing member mounted for pivotal .movement, an arbor in said bearing member generally parallel to said first arbor, means for adjusting said bearing member verticall and means for adjusting said bearing member generally longitudinally ofsaid first arbor.

14. In a machine of the character. described, a frame, an arbor therein, a rocking box having .a pivotal point about which it is 7 adapted to swing towards and from said arbor, an arbor said rocking born-mes, s for, vertically adjusting the pivotal point of saidrocking box, and means for adjusting said pivotal point longitudinally of said first arbor.

5. In a machine of the character described, a frame, a fixed arbor therein, a rocking box within said frame above said arbor, an arbor adjusting screw for longitudinally adjusting said bearing member.

7. In a machine of the character described, a frame,-a fixed arbor therein, a bearing memher, a pivot element about which said bearing n'iember is adapted to rock, an arbor in said bearing member, means including a screw connected to said pivot element for vertically adjusting the same, and means including a screw connected to said iiivot element for longitudinally adjusting the smile.

S. In a machine of the character deer Jed, a frame,.anf arbor there'n, a rocking box in saidframe mounted for pivotal movement towards and away from said arbor, an amor j ournalled in said rocking box, means for adjusting said rocking box longitudinally and including an adjusting screw associated with said box and a sleeve screw cooperating with .said adjusting screw, and means for adjusting said rocking box vertically and includ ing an adjusting screw associated with said rocking box and a sleevescrew cooperating with said. adjusting screw.

9. In a machine of the character described,

a frame, an arbor therein, a rocking box hav- 7 ing a pivotal point about which it is adapted to swing towards and from said arbor, an

arbor journalled in said rocking box, means for adjusting said rocking box longitudinally, said means being pivotally mounted in said frame to permit said rocking box to be adjusted vertically, and means for adjusting said rocking box vertically and arranged to permit said rocking box to be adjusted longitudinally.

10. In a machine of the character described, a frame, an arbor journalled therein, a rock ing box having a pivotal element about which it is adapted to swing towards and from said arbor, an arbor in said rocking box, means for adjusting said rocking box longitudinally and including a screw connected to said pivotal element and supported for pivotal movement about an axis parallel to the axis about which said rocking box swings; and means for adjusting said rocking box vertically and including a pivoted lover, a link between said lever and rocking box, and means for adjusting said lever.

11. In a machine of the character described, a frame, a fixed lower arbor therein, a rocking box in said frame and mounted for swinging movement towards and away from said arbor, an arbor journalled in said rocking box, a pin constituting the pivotal point of said rocking box; means for adjusting said pin longitudinally of said fixed arbor and including a block pivotally mounted in said frame, a sleeve screw in said block, and an adj Listing screw between said sleeve screw and pin; and means for adjusting said rocking box vertically and including a lever pivoted in said frame, links between said lever and pin, an adjusting screw connected to said lever, and a' sleeve screw carried by said frame and cooperating with said adjusting screw.

12. In a machine of the character described, a frame having an opening in its side wall, a fixed arbor, a rockingbox in said frame, an arbor journalled in said rocking box, a pivotal element about which said rocking box swings, means for adjusting said pivotal element generally longitudinally of said fixed arbor, and means for adjusting said rocking box vertically and including an element adapted to be brought into registry with said opening to indicate that said arbors in normal running position are parallel.

13. In a machine of thecharacter described, a frame, an arbor journalled therein, a rocking box in said frame pivoted at one end, an arbor journalled in said rocking box, a lever pivoted in said frame extending across and adapted to engage against the top of the forward end of said rocking box, a foot-treadle connected to said lever for operating the same, and a screw in said frame above said lever and adapted to engage said lever, said screw having a handle for turning the same.

14c. In a machine of the character described and comprising a unitary structure having a base, a frame on said base, an arbor journalled in said frame, a rocking box in said frame, an arbor journalled in said rocking box, a gearbox connected to said frame, a

Lil)

shaft in said gear box, gearing between said shaft and first arbor, a pulley on said shaft, a platform pivoted on said base, an electric motor on said platform, a belt between said motor and pulley, and a spring normally urging said platform in a direction to maintain said belt taut.' 7 15. In a machine of the character described, a frame, a fixed arbor journalled in said 10 frame, a rockingrboxin said frame, an arbor journalled in said rocking box, a pivot member on which saidrocking bar is mounted l r for rocking movement in a direction towards F and away from said fixed arbor, and means for supporting said member and for adjusting the same Vertically and longitudinally of said fixed arbor, said pivot member, rocking box and second arbor being adjustable as a unit. r LEIV S. PLATOU. 

